突发！A股多只高位股尾盘集体跳水

Group 1 - A-share market experienced a significant sell-off in the late trading session, with multiple high-performing stocks dropping sharply [2] - Pingtan Development saw a decline from nearly a 5% increase to over a 7% drop [2] - Dongbai Group fell from a limit-up to a nearly 1% decrease, indicating volatility in high-position stocks [2] Group 2 - MACD golden cross signal has formed, suggesting a positive trend for certain stocks [3]